Centering jack



April 11, 1939.

c, R. PROCTOR CENTERING JACK Filed Aug. 14, 1936 INVENTOR ATTORNEYS Patented Apr. 11, 1939 UNITED STATES PATENT OFFICE 1 Claims.

This invention relates to attachments for jacks and similar devices, and has for the primary object the provision of a simple and inexpensive device which may be readily adapted to a conventional type of jack for centering the lifting head of a jack under the axle of a vehicle and thereby render the placing of a jack directly under the axle of a vehicle easier and quicker.

With these and other objects in view, this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.

For a complete understanding of my invention, reference is to be had to the following description and accompanying drawing, in which Figure 1 is a side elevation illustrating a jack equipped with an attachment constructed in accordance with my invention.

Figure 2 is a top plan view illustrating the same.

Figure 3 is an edge view illustrating the attachment and showing the latter appliedto the elevating head of a jack.

Figure 4 is a perspective View illustrating the attachment.

Figure 5 is a fragmentary side elevation showing an axle elevated by the jack with the attachment disengaged from the axle.

Referring in detail to the drawing, the numeral l indicates a conventional type of screw jack wherein the elevating head is indicated by the character 2 and the operating medium by the character 3.

Connected to the head 2 is an attachment 4 for the purpose of centering the head 2 directly under an axle 5 on the placing of the jack I under the axle. The attachment 4 consists of a plate bent to form portions 6, l, 8 and 9. The portion 40 6 is apertured to receive the screw stem ID of the jack with the portion 6 underlying the head 2. The portion 1 extends upwardly and outwardly from the portion 6 while the portions 8 and 9 are disposed angularly to each other and their point of formation to one another being disposed directly over the head 2. The portions 8 and 9 are adapted to engage with an axle, as shown in Figure 1, supporting the head 2 directly under the axle so that upon actuation of the jack to engage with both the ground and. the axle the jack will be properly aligned with the axle to bring about the elevation thereof. The free end of the portion 9 is spaced a distance from the portion 6 so as to permit the portions 8 and 9 to be readily placed over the axle using the operating medium 3 for carrying out the placing of the jack under the axle and at the same time bringing the portions 8 and 9 to overlie the axle.

It is preferable that the entrance established by the end 9 and the portion 6 of my invention be disposed on the opposite side of the jack from the operating handle of the jack.

Having described the invention, I claim:

As a new article of manufacture, a centering means for the head of a jack, comprising a fiat base plate provided with an aperture to supportingly receive the upper portion of the jack screw adjacently below the elevating head thereon, a V-shaped member disposed above said base plate with the apex of said member coplanar with the axis of said aperture, one side of said member being longer than the other side, and an upwardly and outwardly extending connecting member integral with the contiguous ends of said base plate and said longer side of said V-shaped member, the shorter side of said V-shaped member having the free lower end thereof spaced from the base plate a distance suiiicient to permit the free insertion of an axle housing or like article by horizontal movement of the device.

CARL R. PROCTOR. 

